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RHSA-2024:10282

Vulnerability from csaf_redhat - Published: 2024-11-26 02:06 - Updated: 2026-08-04 18:57
Summary
Red Hat Security Advisory: kernel-rt:4.18.0 security update
Severity
Low
Notes
Topic: An update for the kernel-rt:4.18.0 module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: media: edia: dvbdev: fix a use-after-free (CVE-2024-27043) * kernel: bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE (CVE-2024-38564) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

In the Linux kernel, the following vulnerability has been resolved: media: edia: dvbdev: fix a use-after-free In dvb_register_device, *pdvbdev is set equal to dvbdev, which is freed in several error-handling paths. However, *pdvbdev is not set to NULL after dvbdev's deallocation, causing use-after-frees in many places, for example, in the following call chain: budget_register |-> dvb_dmxdev_init |-> dvb_register_device |-> dvb_dmxdev_release |-> dvb_unregister_device |-> dvb_remove_device |-> dvb_device_put |-> kref_put When calling dvb_unregister_device, dmxdev->dvbdev (i.e. *pdvbdev in dvb_register_device) could point to memory that had been freed in dvb_register_device. Thereafter, this pointer is transferred to kref_put and triggering a use-after-free.

Affected products
Product Identifier Version Remediation
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-553.30.1.rt7.371.el8_10.src
Vendor Fix fix
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-core-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-debug-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-debug-core-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-debug-debuginfo-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-debug-devel-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-debug-kvm-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-debug-modules-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-debug-modules-extra-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-debuginfo-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-debuginfo-common-x86_64-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-devel-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-kvm-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-modules-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: NFV-8.10.0.Z.MAIN.EUS:kernel-rt-modules-extra-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: RT-8.10.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-553.30.1.rt7.371.el8_10.src
Vendor Fix fix
Unresolved product id: RT-8.10.0.Z.MAIN.EUS:kernel-rt-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: RT-8.10.0.Z.MAIN.EUS:kernel-rt-core-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: RT-8.10.0.Z.MAIN.EUS:kernel-rt-debug-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: RT-8.10.0.Z.MAIN.EUS:kernel-rt-debug-core-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: RT-8.10.0.Z.MAIN.EUS:kernel-rt-debug-debuginfo-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: RT-8.10.0.Z.MAIN.EUS:kernel-rt-debug-devel-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: RT-8.10.0.Z.MAIN.EUS:kernel-rt-debug-modules-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: RT-8.10.0.Z.MAIN.EUS:kernel-rt-debug-modules-extra-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: RT-8.10.0.Z.MAIN.EUS:kernel-rt-debuginfo-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: RT-8.10.0.Z.MAIN.EUS:kernel-rt-debuginfo-common-x86_64-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: RT-8.10.0.Z.MAIN.EUS:kernel-rt-devel-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: RT-8.10.0.Z.MAIN.EUS:kernel-rt-modules-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Unresolved product id: RT-8.10.0.Z.MAIN.EUS:kernel-rt-modules-extra-0:4.18.0-553.30.1.rt7.371.el8_10.x86_64
Vendor Fix fix
Threats
Impact Low

In the Linux kernel, the following vulnerability has been resolved: bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE bpf_prog_attach uses attach_type_to_prog_type to enforce proper attach type for BPF_PROG_TYPE_CGROUP_SKB. link_create uses bpf_prog_get and relies on bpf_prog_attach_check_attach_type to properly verify prog_type <> attach_type association. Add missing attach_type enforcement for the link_create case. Otherwise, it's currently possible to attach cgroup_skb prog types to other cgroup hooks.

CWE-665 - Improper Initialization
Affected products
Fixed 30 products, the same list as for CVE-2024-27043
Threats
Impact Low

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          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: edia: dvbdev: fix a use-after-free\n\nIn dvb_register_device, *pdvbdev is set equal to dvbdev, which is freed\nin several error-handling paths. However, *pdvbdev is not set to NULL\nafter dvbdev\u0027s deallocation, causing use-after-frees in many places,\nfor example, in the following call chain:\n\nbudget_register\n  |-\u003e dvb_dmxdev_init\n        |-\u003e dvb_register_device\n  |-\u003e dvb_dmxdev_release\n        |-\u003e dvb_unregister_device\n              |-\u003e dvb_remove_device\n                    |-\u003e dvb_device_put\n                          |-\u003e kref_put\n\nWhen calling dvb_unregister_device, dmxdev-\u003edvbdev (i.e. *pdvbdev in\ndvb_register_device) could point to memory that had been freed in\ndvb_register_device. Thereafter, this pointer is transferred to\nkref_put and triggering a use-after-free.",
          "title": "Vulnerability description"
        },
        {
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          "text": "kernel: media: edia: dvbdev: fix a use-after-free",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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          "title": "Vulnerability description"
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          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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